﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1.TestThread
{
    public partial class Test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            ClearControl(this.Page.Controls);
        }

        private void ClearControl(ControlCollection con)
        {
            foreach (System.Web.UI.Control obj in con)
            {

                if (obj is TextBox)
                {
                    ((TextBox)obj).Text = string.Empty;
                }
                if (obj.HasControls())
                {
                    ClearControl(obj.Controls);
                }
            }
        }
    }
}